I have the condition called adenomyosis and was prescribed the pill (yasmin) by my gynaecologist. I have just started my third cycle of this. During the first two cycles I took the sugar pills to allow my body to have its period. With this cycle I got to the sugar pills eleven days ago and instead of taking them I have continued with the pill. Seven days ago I started experiencing breakthrough bleeding which I had been told to expect. I am just wondering how long I can expect this to last. It is a light bleed but doesn't seem to be letting up. I'm also experiencing uncomfortable period pain.